Credit

Caption

Wind turbine. Wind power is a renewable and clean source of energy for electricity production. The wind turns the blades, and this drives a turbine to generate electricity. This wind turbine is one of three that started operating in August 2006. Together they produce 30 million kilowatt hours (kWh) each year, which is sufficient to power 9000 households. Photographed at Neeltje-Jans Windpark, which is situated on a flood barrier in Zeeland in the Netherlands.